Mark Buckman is a fictional character portrayed by William O'Leary in the TV series SEAL Team.
In the first episode they appeared in, titled Borderlines (season 1), they were 60 years old.
They appear in 1 episodes out of a total of 104 aired so far
Episodes1
Borderlines
episode S1.E7 november 2017Jason and the SEAL Team must rescue an undercover CIA operative after she is captured by radical terrorists to be used as a bargaining chip. Also, Clay undergoes the final harrowing exercise for his candidacy into Tier One.